Finmeccanica Spa

Riccardo Cecinati

Gianluca Nicchiotti

Marco Corvi

Giovanni Borghero

Fabio Caccia

Pasquale Scelza

A system for comparing digital images, whereby a first and second data processing block receive respective data streams corresponding to a reference image and a detected image for comparison with the reference image. The data processing blocks detect reference points in the images, and generate data, which is supplied to a block for determining a first approximation of the function A.sub.o relating the two images. The system also presents blocks for successively refining the function relating the reference image to the detected image. (FIG. 1)

Digital image comparing system

A SLAVE coprocessor connectable to a MASTER processor and cooperating with at least one external memory. The coprocessor presents an internal memory communicating with an internal data line extending between a first and second interface circuit communicating respectively with the processor and the external memory; the internal memory contains a character composed of a rectangular matrix of pixels corresponding to a digitized alphanumeric character; and the coprocessor presents an electronic arithmetic unit for comparing a character from the internal memory with a reference matrix from the external memory.

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Albissola, Italy

Riccardo Cecinati